DOUBLE STRENGTHENING TECHNOLOGY: the back is both nailed and sealed with white masking tape. | STRETCHED BY HAND:Hand-stretch each canvas to perfection and ensure the corners are perfectly folded and tucked. | STURDY CANVAS FRAME:1.2’’ thick wood bars and it is not easy to deformation. | EASY TO HANG UP:Each panel has a metal hook already mounted on the wooden bar. | FREE ACCESSORY:Screws included.If you can't put the obvious holes on the wall, hang them with the push pins or nails.The high-precision image is printed on canvas and it looks like real wood grain.